Automatic packaging and publishing helm charts

[mariannovotny]

CI/CD pipeline that will package and publish helm charts from sources from this repository (storm) and charts from other repositories such as siembol

[jgiannuzzi]

@pavlovic-ivan this is the work @ljubon started with #50 and #51

Let's get this over the line, team! 💪

[pavlovic-ivan]

@jgiannuzzi sounds good. team is already on it, verifying the PRs :)